For Sale: Elecraft KPA-500, serial # 0698, solid state linear amplifier, covers 160-6 meters. Factory upgraded w/ T/R circuit plus 12-meter low pass filter mod on June 1, 2015. Amplifier "meets or exceeds all factory specifications." $1750 shipped CONUS. Please contact direct: h3cary at gmail.com Cary, K4TM Lynchburg VA 434-660-8299 Sent from my iPad